JPH1164026A - Navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the operation of a navigation system and to display information regarding a route in such manner that it is easily grasped. SOLUTION: Illuminators 9h and 9v form an infrared-ray lattice plane ahead on a screen 8. Illuminators 10h and 10v form an infrared-ray lattice space ahead of the infrared-ray lattice plane. When a finger is inserted into the lattice space, a coordinate-detecting device 13 detects the coordinate of the fingertip in the space. A CPU 4 measures the distance from the screen 8 to the fingertip based on the coordinate of fingertip, and controls a scale of a display image according to the distance. When the fingertip is moved parallel to the screen 8 in the lattice space, the CPU 4 specifies the advancing direction of the fingertip, based on time-base change of the coordinate of fingertip, so that a display part is moved according to the direction. When the screen 8 is touched with a fingertip, the coordinate of the fingertip is detected on that lattice plane, and the CPU 4 controls so that a display window containing more detailed information about the display part corresponding to the coordinate of fingertip is displayed on the screen 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device which displays a route to a destination or a halfway point while informing a driver of a vehicle of a current position and assists driving of the vehicle. .

[0002]

2. Description of the Related Art A navigation apparatus can provide a driver with route guidance to a destination or a passing point on the way while a vehicle is running. In general, a conventional operation method of a navigation device is a method of performing remote control using a remote controller. The remote controller has operation keys corresponding to a plurality of operations. When the operator presses the operation key, the remote controller transmits a control signal corresponding to the operation key. The navigation device
When a control signal transmitted from the remote controller is received, processing is performed based on the control signal.

[0003]

In a conventional navigation device, an operation is performed by a remote controller. When an operation key is pressed, an operator checks whether or not the operation key corresponds to a desired operation. A confirmation operation such as a trial operation is imposed. For this reason, it is difficult to intuitively perform the operation, and the detailed operation becomes complicated.

[0004] In a conventional navigation device, an operation is often performed by selecting various items displayed on a menu screen or a menu bar. However, the prepared selection items do not include an assumed pattern in consideration of convenience when the operator operates the navigation device. For example, among the selection items displayed on the menu, many unnecessary items are set by a general operator. For this reason, the operator must follow the intention of the designer of the navigation device, and the degree of freedom of the operator's selection is limited. In other cases, when changing the scale of the image of the road map display and the scroll speed of the display, the image is displayed discontinuously. Therefore, the operation is complicated. In other cases, the type of information displayed does not change regardless of the position of the vehicle, or the display does not match the characteristics of the road or terrain on which the vehicle is traveling. There is no sex.
For this reason, it is often difficult to grasp the display contents. When a vehicle is operated using a navigation device, the navigation device is required to be easy to operate and to be able to easily grasp display contents in order to operate smoothly.

[0005] It is an object of the present invention to provide a navigation device which can be easily operated and which can easily grasp necessary information on a route.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a navigation device for assisting driving of a vehicle while displaying data such as a road map as an image, in a space within a predetermined distance from an image display screen. A distance measuring unit that measures the distance between the screen and the fingertip; and a display control unit that controls the image to be enlarged and displayed in accordance with the magnitude of the distance measured by the distance measuring unit. It is a navigation device.

According to the present invention, when the operator's finger is inserted into a space within a predetermined distance range from the image display screen of the navigation device, the distance measuring means measures the distance between the screen and the fingertip. . The display control means controls the image to be enlarged and displayed according to the distance between the screen and the fingertip measured by the distance measuring means, so that the map display image is changed to a large scale by a simple operation. be able to.

According to the present invention, there is provided a navigation apparatus for assisting driving of a vehicle while displaying data such as a road map as an image, in a space within a predetermined distance from an image display screen. A navigation device includes a distance measuring unit that measures a distance, and a display control unit that controls an image to be reduced and displayed in accordance with the magnitude of the distance measured by the distance measuring unit.

According to the present invention, when the operator's finger is inserted into a space within a predetermined distance range from the image display screen of the navigation device, the distance measuring means measures the distance between the screen and the fingertip. . The display control means controls the image to be displayed in a reduced scale in accordance with the distance between the screen and the fingertip measured by the distance measurement means, so that the map display image is changed to a small scale by a simple operation. be able to.

Further, the present invention provides a navigation apparatus for assisting driving of a vehicle while displaying data such as a road map as an image, and measures a position of a fingertip in a space within a predetermined distance from an image display screen. Position measuring means, a moving direction detecting means for detecting a moving direction of the fingertip from a temporal change of the position of the fingertip measured by the position measuring means, and a display portion of the image is moved according to the moving direction from the moving direction detecting means. And a display control means for controlling the navigation device.

According to the present invention, the position measuring means measures the position of the fingertip in the space when the operator's finger is inserted into a space within a predetermined distance from the screen of the navigation device. The traveling direction detecting means detects the traveling direction of the fingertip from a temporal change in the position of the fingertip when the position of the fingertip measured by the position measuring means moves. According to the traveling direction detected by the traveling direction detection means, the display control means
Since the display portion of the image of the navigation device is controlled to move, the displayed image can be easily moved.

Further, the present invention further includes a distance measuring means for measuring a distance between the screen and the fingertip in a space within a predetermined distance from the image display screen, and the display control means comprises:
The moving speed of the display portion is accelerated according to the distance between the fingertip and the screen.

According to the present invention, when the operator's finger is inserted into a space within a predetermined distance from the screen of the navigation device, the distance measuring means measures the distance between the fingertip and the screen. The position measuring means measures the position of the fingertip in the space. The traveling direction detecting means detects the traveling direction of the fingertip from a temporal change in the position of the fingertip measured by the position measuring means. The display control means controls the display portion of the image to move according to the moving direction of the fingertip, and accelerates the moving speed of the display portion according to the distance between the fingertip and the screen. Can be controlled.

Further, the present invention further includes a distance measuring means for measuring a distance between the screen and the fingertip in a space within a predetermined distance from the screen for image display, wherein the display control means comprises:
The moving speed of the display portion is reduced according to the distance between the fingertip and the screen.

According to the present invention, when the operator's finger is inserted into a space within a predetermined distance from the screen of the navigation device, the distance measuring means measures the distance between the fingertip and the screen. The position measuring means measures the position of the fingertip in the space. The traveling direction detecting means detects the traveling direction of the fingertip from a temporal change in the position of the fingertip measured by the position measuring means. The display control means controls the display portion of the image to move according to the moving direction of the fingertip, and reduces the moving speed of the display portion according to the distance between the fingertip and the screen. Can be controlled.

According to the present invention, there is provided a navigation apparatus for assisting driving of a vehicle while displaying data such as a road map as an image, wherein contact detecting means for detecting that a fingertip touches an image display screen, Display means for detecting that the fingertip is in contact with the screen by the detection means, and controlling to open a display window containing detailed information on the screen when the fingertip is continued for a predetermined time. This is a featured navigation device.

According to the present invention, when the contact between the fingertip and the image display screen detected by the contact detection means continues for more than a predetermined time, the display control means sets the display window including the detailed information. Since the control is performed so that it opens on the screen, for example, the normal display content is the minimum information required for vehicle operation, and detailed information is required when the operator needs more detailed information such as information on complicated intersections. Can be displayed. For this reason, normal display contents can be simplified, and the display contents can be easily grasped. Since the operation is performed when the contact between the fingertip and the screen detected by the contact detection means continues for more than a predetermined time, it is possible to prevent an undesired operation of the operator when the fingertip or the like accidentally contacts the screen. it can.

According to the present invention, there is provided a navigation apparatus for assisting driving of a vehicle while displaying data such as a road map as an image. A navigation device characterized by including a display control means for controlling switching between display and topographic map display.

According to the present invention, when the display is selected by the input means, the display control means controls to switch between the general road display and the terrain map display in response thereto. When a road is displayed, information related to the height of the road is included, and the actual length of the route can be visually grasped. The degree of inclination of the road can be known in advance, and acceleration and deceleration can be performed in accordance with the inclination of the road even on a path with poor visibility.
Therefore, it can run smoothly.

According to the present invention, there is provided a navigation apparatus for assisting driving of a vehicle while displaying data such as a road map as an image. A navigation device, comprising: display control means for controlling switching between display and display of a main road and related information.

According to the present invention, when the display is selected by the input means, the display control means controls to switch between the display of the general road and the display of the main road and the related information in response thereto. When using a main road as a route, unnecessary road information is not displayed. As related information,
For example, it is possible to display a connection point between a certain arterial road and a road connecting to another arterial road, and to display a distance from the own vehicle position to this connection point. Therefore, the display content can be easily grasped.

According to the present invention, there is provided a navigation apparatus for assisting driving of a vehicle while displaying data such as a road map as an image. A navigation device, comprising: display control means for controlling switching between display and display of statistical information on a designated point.

According to the present invention, when the display is selected by the input means, the display control means controls to switch between the display of the general road and the display of the statistical information related to the designated point in response thereto. Therefore, it is possible to display information such as the geography of a destination or a passing point on the way, an event, and a special product.

[0024]

FIG. 1 shows a schematic electrical configuration of a navigation device according to a first embodiment of the present invention.
The own-vehicle position detecting device 1 detects the own-vehicle position from own-vehicle position data based on signals transmitted from sensors such as an azimuth sensor, speed sensors, and distance sensors, and GPS signals.
Road map data, road information, and the like are recorded on the CD-ROM disc 2 in a code form, and are returned to a data form that can be easily processed by the decoder 3. The vehicle position data output from the vehicle position detection device 1 and the road map data and road information output from the decoder 3 are transmitted to the CPU 4. The CPU 4 performs image processing for display using a memory 5 including a ROM and a RAM as a program memory and a work area. The CPU 4 creates display data and causes the display device 7 to perform display via the display drive device 6.

When display is performed on the screen 8 by the display device 7, the CPU 4 uses the light emitting devices 9h and 9v to display the screen 8.
, An infrared grating surface is formed in front of the light emitting devices 10h and 10v.
Thus, an infrared grating space is formed in front of the infrared grating surface. In the light emitters 9h and 9v, infrared light emitting elements such as LEDs are arranged in a line. The light emitter 9h forms the horizontal direction of the infrared lattice plane, and the light emitter 9v forms the vertical direction of the infrared lattice plane. The infrared light emitting elements of the light emitters 9h and 9v are arranged at intervals such that when a fingertip touches the screen 8, at least one of the horizontal and vertical infrared beams is blocked. In the light emitters 10h and 10v, infrared light emitting elements are arranged in a matrix. The light emitter 10h forms the horizontal direction of the infrared lattice space, and the light emitter 1h
0v forms the vertical direction of the infrared grid space.

The infrared beams emitted from the light emitters 9h, 9v, 10h, and 10v are received by the light receivers 11h, 11h, respectively.
v, 12h, and 12v. Light receiver 11h, 11
An infrared light receiving element such as a phototransistor is arranged in each of v, 12h, and 12v so that an infrared beam emitted from the infrared light emitting element can be received 1: 1.

FIG. 2 shows the light emitting devices 9h, 9v, 10h, 10v and the light receiving device 1 with respect to the screen 8 of the embodiment of FIG.
The schematic arrangement of 1h, 11v, 12h, and 12v is shown.
The light emitters 9h and 9v and the light receivers 11h and 11v are arranged so as to border the screen 8 inside the display device 7, for example. Light-emitting devices 10h and 10v and light-receiving devices 12h and 12v
Are built in the frame 14 and arranged outside the display device 7, for example.

The light emitters 11h and 11v indicate to the coordinate detector 13 that a certain infrared light beam has been interrupted when a certain infrared light receiving element cannot receive an infrared beam due to the fingertip touching the screen 8. The signal shown is sent.
The light receivers 12h and 12v output a signal indicating that a certain infrared beam has been cut off to the coordinate detecting device 13 when a certain infrared light receiving element cannot receive the infrared beam due to the presence of the finger in the lattice space. Is sent.

The coordinate detecting device 13 includes light receivers 11h and 11h.
From the infrared cutoff signal sent from v, which part on the screen 8 the fingertip touches is detected. In addition, the infrared detector 13 detects the infrared cutoff signal detected at the position closest to the screen 8 among the infrared cutoff signals transmitted from the light receivers 12h and 12v when the infrared cutoff signal is not transmitted from the light receivers 11h and 11v. The position of the fingertip in the lattice space is detected as the position of the fingertip. The signal indicating the position of the fingertip detected by the coordinate detecting device 13 is transmitted to the CPU 4.
Sent to

The CPU 4 monitors a signal indicating the position of the fingertip sent from the coordinate detecting device 13. When the fingertip does not touch the screen 8 and the position of the fingertip approaches the screen 8, the CPU 4 controls the image displayed on the screen 8 to be enlarged according to the distance between the fingertip and the screen 8. For example, when the display image of the screen 8 has the content as shown in FIG. 3A and the fingertip approaches the screen 8, the display image of the screen 8 is enlarged as shown in FIG. When the position of the fingertip moves away from the screen 8, the CPU 4 controls the image displayed on the screen 8 to be reduced according to the distance between the fingertip and the screen 8. For example, the display image of the screen 8 is shown in FIG.
When the fingertip is moved away from the screen 8 when the content is as shown in FIG. 3, the display content of the screen 8 is reduced as shown in FIG. Conversely, when the position of the fingertip approaches the screen 8, the image displayed on the screen 8 is reduced according to the distance between the fingertip and the screen 8, and when the position of the fingertip moves away from the screen 8, the fingertip and the screen The image displayed on the screen 8 may be set to be enlarged according to the distance 8. Note that the inside of the broken ellipse in FIG. 3 is the same place on the map, and the same applies to the subsequent figures.

When the position of the fingertip moves in a direction parallel to the screen 8, the CPU 4 detects a temporal change in the position of the fingertip and specifies the traveling direction of the fingertip. Then, as shown in FIG. 4, the display content of FIG. 8 is scrolled according to the moving direction of the fingertip. When the display content of the screen 8 is as shown in FIG. 4A, inserting a finger into the infrared grid space and moving the fingertip to the left causes the display content to move to the left as shown in FIG. Scroll. Similarly, when the fingertip is moved upward in the lattice space in the state of FIG. 4A, the display content is scrolled upward as shown in FIG. 4C. The scroll speed is determined according to the distance between the fingertip and the screen 8. When the fingertip is moved at a position relatively far from the screen 8 in the lattice space, the display portion scrolls relatively quickly. When the fingertip is moved at a position where the fingertip is relatively close to the screen 8, the display portion scrolls relatively slowly. Contrary to this, it is set that scrolling is slow when the fingertip is moved where the position of the fingertip is relatively far from the screen 8 and scrolled quickly when the fingertip is moved where the position of the fingertip is relatively close to the screen 8. You may. For example, even when the fingertip is moved to the right by the same amount, if the scroll speed is high, the display content moves largely as shown in FIG. 5A, and the scroll speed is slow as shown in FIG. And the display contents move small.

In the above operation, for example, the coordinate detecting device 13 continuously operates at the same position for a certain period of time or longer so as not to perform an undesired operation when a finger or the like is erroneously inserted into the lattice space. Is set to start operation when a fingertip is detected. Similarly, the operation is set to end when the detected content of the coordinate detection device 13 is the same for a predetermined time or more.

FIG. 6 shows the operation when the image is enlarged or reduced in the navigation device according to the first embodiment of the present invention. The operation starts in step s1. At this point, it is assumed that an image is being displayed and no infrared grating surface is formed by the light emitters 9h and 9v. In step s2, an infrared lattice space is formed in front of the screen 8 using the light emitters 10h and 10v. In step s3, the CPU 4 monitors the position of the fingertip detected by the coordinate detecting device 13.
When a finger or the like is erroneously inserted into the lattice space, it is necessary to prevent the operator from performing an undesired operation. Therefore, in step s4, when the coordinate detecting device 13 detects the position of the fingertip, it is determined whether or not the fingertip has been continuously at the same position for a certain fixed time or more. If the determination in step s4 is negative, the process returns to step s3,
When the determination in step s4 is affirmative, the process proceeds to step s5. In step s5, it is detected that the fingertip of the operator is moved in the normal direction of the screen 8. In step s6, the scale of the display content is changed according to the distance between the screen 8 and the fingertip. In step s7, it is determined whether or not the detection content of the coordinate detection device 13 is the same for a certain period of time or more. If the determination in step s7 is negative, step s7
Returning to step 6, when the judgment in step s7 is affirmative, the operation is ended in step s8. According to the determination in step s7, in addition to the case where the position of the fingertip is continuously located at the same place in the infrared grid space for a certain period of time or more, the finger is outside the infrared grid space and The operation can be ended even when the coordinate detection device 13 does not detect anything continuously for more than the time.

FIG. 7 shows an operation of moving the display portion of an image in the navigation device according to the first embodiment of the present invention. Steps a1 to a4 are the same as steps s1 to s4 in FIG. 6 except that the process proceeds to step a5 when a positive determination is made in step a4. In step a5, it is detected that the fingertip of the operator is moved in parallel with the screen. In step a6, the CPU 4 detects a temporal change in space coordinates indicating the position of the fingertip in the lattice space. In step a7, the CPU 4 specifies the direction in which the fingertip is moving from the temporal change of the spatial coordinates indicating the position of the fingertip. In step a8, the CPU 4 measures the distance between the screen 8 and the fingertip based on the component corresponding to the normal direction of the screen 8 among the spatial coordinates indicating the position of the fingertip. And
The scroll speed is determined according to the distance between the screen 8 and the fingertip. In step a9, the display portion of the screen is moved according to the traveling direction specified in step a7 and the scroll speed determined in step a8. In step a10, the same determination as in step s7 in FIG. 6 is performed. When the determination in step a10 is negative, the process returns to step a6, and when the determination in step a10 is positive, the operation ends in step a11.

When the position of the fingertip detected by the coordinate detecting device 13 is the same for a certain period of time or longer when the fingertip touches the screen 8, the CPU 4 performs more detailed display on the display portion touched by the fingertip. The display device 7 is controlled via the display drive device 6 so as to open a display window containing important information on the screen 8. For example, if the user touches the inside of the dashed ellipse of the screen 8 shown in FIG. 8A continuously for a certain period of time as a fingertip, the inside of the dashed ellipse of FIG. 8A is enlarged as shown in FIG. A display window 15 to be displayed opens on the screen 8. The information displayed in the display window 15 includes FIG.
When displayed in the image of (1), the information includes intersection line information that becomes complicated. As a method of closing the display window 15, for example, there is a method of controlling the CPU 4 so that the display window 15 opened on the screen 8 is closed by touching the display window 15 with a fingertip for a predetermined time or more.

FIG. 9 shows the operation of opening the display window 15 on the screen 8 by touching the screen 8 with a fingertip. The operation starts in step b1, and it is assumed that the image is displayed at this point. In step b2, an infrared lattice plane is formed in front of the screen 8 using the light emitters 9h and 9v. In step b3, the position of the fingertip detected by the coordinate detecting device 13 is set to C
PU4 monitors. In step b4, the coordinate detection device 1
It is determined whether or not the position of the fingertip detected by step 3 is continuously present at the same place for a certain fixed time or more.
If the determination in step b4 is negative, the process returns to step b3, and if the determination in step b4 is positive, step b5
Move on to In step b5, the CPU 4 specifies which display portion on the screen 8 the fingertip is touching. Step b6
Then, about the display part on the screen 8 touched by the fingertip,
A display window 15 containing more detailed information is opened on the screen 8, and the operation ends in step b7.

Next, a second embodiment of the present invention will be described. In the embodiment shown in FIG.
The map data stored on the disk 2 is roughly
It is composed of topographic data such as land, sea and river, and road data. Among them, the terrain data includes latitude and longitude data and altitude data. The road data includes a node position such as a turning point or an intersection where a road is approximated as a broken line, node data representing an attribute of the node, and a path length and a road type of a road section called a link connecting the two nodes. It is configured to include link data indicating an attribute. The node data includes “altitude” as the position information of the node, and “whether or not there is a connection to the main road” as the node attribute.

In the present embodiment, a menu bar 16 including display selection items as shown in FIG. 10 is displayed on the screen 8 of the display device of FIG. 1, for example. The menu bar 16 includes display portions that respectively show selection of switching between general road display and topographic map display and selection of switching between general road display and main road display. On the screen 8, when the display portion indicating the selection of switching between the general road display and the terrain display is touched with a fingertip, the general road display shown in FIG.
Switching to the topographic map display shown in (2) can be performed. In the topographic map display, for example, as shown in FIG. 11B, the topographic map display is displayed in a bird's-eye view. In this terrain map display, unevenness of the terrain is three-dimensionally displayed in proportion to the actual code. The shape of the road is displayed along the three-dimensional terrain. If the road is hidden behind a mountain or the like by displaying the terrain three-dimensionally, the shape of the hidden road is displayed by a broken line 17, for example, as shown in FIG. In the terrain map display, the actual distance of the mountain road can be displayed as shown in FIG.

When the user touches a display portion on the screen 8 indicating the selection of switching between the general road display and the main road display with a fingertip, FIG.
Switching between the general road display shown in FIG. 2 (1) and the main road display shown in FIG. 12 (2) can be performed. In the main road display, the display is performed based on the road type of the link attribute or the link data indicating the main road. For example, FIG.
In the general road display, the main roads 18 and 19 and the branch road 2
Although 0 and 21 are displayed, only the main roads 18 and 19 are displayed in the main road display. In addition, a connection point with a branch road which is a route when moving from a certain main road to another main road is displayed as the related information. For example, in the general road display of FIG.
A branch road 20 connects between 8 and 19. FIG.
In the main road display in (2), the branch roads are not displayed, but the connection points 22 and 23 indicating that there are the branch roads 20 to which the main roads 18 and 19 are connected are displayed. For this reason,
When the vehicle is going to the destination mainly as a route of the main road, the display contents can be simplified because the branch road is not displayed. Even if the intersection name of the connection point and the distance from the own vehicle position to the connection point are displayed along with the display of the connection point, the map itself is simplified, so that the operator can easily grasp the display contents.

The CD-ROM disk 2 divides a topographical map into a plurality of blocks, and stores information such as geography, an event, and a special product of each block as, for example, character data. The menu bar 16 shown in FIG. 10 further includes a display portion indicating selection of switching between general road display and statistical information display. By touching a display portion on the screen 8 indicating a selection of switching between general road display and statistical information display with a fingertip, FIG.
Switching between the general road display shown in FIG. 3 (1) and the statistical information display shown in FIG. 13 (2) can be performed. For example,
In the general road display shown in FIG. 13 (1), when a portion indicating the selection of switching between the general road display and the statistical information display is touched with a fingertip, a block selection mode is set. In the block selection mode, for example, when the user touches the star mark portion 24 shown in FIG. 13A on the screen 8 with a fingertip, the CPU 4 displays statistical information such as character information on a block including the star mark portion 24 on the CD-CD. The data is read from the ROM disk 2 and displayed on the screen 8 as shown in FIG.

FIG. 14 shows an example of the operation for switching between the general road display and the terrain map display in this embodiment. Steps d1 to d3 are the same as steps b1 to b3 in FIG. In step d4, it is determined whether or not the fingertip continuously touches a display portion on the screen 8 indicating the selection of switching between the general road display and the terrain map display for a certain period of time or longer. When an affirmative determination is made in step d4, the process proceeds to step d5, and when a negative determination is made, the process returns to step d3. At step d5, the display is switched between the general road display and the topographic map display, and the operation is terminated at step d6.

FIG. 15 shows an example of an operation for switching between the display of a general road and the display of a main road in the present embodiment. Steps e1 to e3 are the same as steps b1 to b3 in FIG. In step e4, it is determined whether or not the fingertip continuously touches the display portion on the screen 8 indicating the selection of switching between the general road display and the main road display for a certain fixed time or more. When an affirmative determination is made in step e4, the process proceeds to step e5, and when a negative determination is made, the process returns to step e3. In step e5, the display is switched between the general road display and the main road display,
The operation ends at step e6.

FIG. 16 shows an example of the operation for switching between the display of general roads and the display of statistical information in the present embodiment. Steps f1 to f3 are the same as steps b1 to b3 in FIG. In step f4, it is determined whether or not the fingertip continuously touches a display portion on the screen 8 indicating selection of switching between the general road display and the statistical information display for a certain fixed time or more. When an affirmative determination is made in step f4, the process proceeds to step f5, and when a negative determination is made, the process returns to step f3. Step f
At 5, the mode shifts to the block selection mode, and at step f6, the state of receiving infrared rays is monitored. At step f7, it is determined whether or not a fingertip touches a certain place on the map display that looks into the display selection bar on the screen 8 for a predetermined time or more. If a positive determination is made in step f7, step f
Then, if a negative determination is made, the process proceeds to step f6.
Return to In step f8, a block including the location selected on the screen 8 is specified. In step f9, the statistical information relating to the specified block is read from the CD-ROM disk 2 and processed by the CPU 4 into display data. At step f10, the display is switched between the general road display and the statistical information display, and the operation is terminated at step f11.

[0044]

As described above, according to the present invention, a space within a predetermined distance from the screen of the navigation device is provided.
When the operator's finger is inserted, the image can be enlarged and displayed according to the size of the distance between the screen and the fingertip.
Necessary information on the route can be grasped by a simple operation.

According to the present invention, when an operator's finger is inserted into a space within a predetermined distance from the screen of the navigation device, an image is displayed according to the magnitude of the distance between the screen and the fingertip. Since the display can be reduced, it is possible to grasp necessary information on the route by a simple operation.

According to the present invention, when the position of the fingertip moves in a space within a predetermined distance from the screen of the navigation device, the display portion of the image of the navigation device can be moved in accordance with the moving direction of the fingertip. Since it is possible, necessary information on the route can be grasped by a simple operation.

According to the present invention, the moving speed of the display portion of the image can be accelerated in accordance with the distance between the fingertip and the screen, so that the moving speed of the display portion can be changed by a simple operation.

According to the present invention, the moving speed of the display portion of the image can be reduced according to the distance between the fingertip and the screen, so that the moving speed of the display portion can be changed by a simple operation.

According to the present invention, when the fingertip and the screen come into contact with each other for more than a predetermined time, a display window containing detailed information is opened on the screen, so that normal display contents can be simplified. The display contents can be easily grasped.

Further, according to the present invention, the display can be switched between the general road display and the terrain map display, so that the actual shape of the route can be visually grasped.

Further, according to the present invention, it is possible to switch between the display of the general road and the display of the main road and the related information. Easy display contents can be obtained.

Further, according to the present invention, it is possible to switch between the display of general roads and the display of statistical information related to a designated point. Can be displayed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration of a navigation device according to an embodiment of the present invention.

FIG. 2 is a light-emitting device 9h, 9v, 10 for the screen 8 of FIG.
h, 10v and light receivers 11h, 11v, 12h, 12
It is a perspective view showing arrangement of v.

FIG. 3 is a diagram illustrating an example of a display image on a screen 8 when the display image is enlarged or reduced in the embodiment of FIG. 1;

4 is a diagram showing an example of a display image on a screen 8 when a display portion is moved in the embodiment of FIG.

5 shows an example of a display image on the screen 8 when the fingertip is moved to the right by the same degree when the moving speed of the display portion is high and when the moving speed of the display portion is low in the embodiment of FIG. FIG.

FIG. 6 is a flowchart showing an operation for enlarging or reducing a display image in the embodiment of FIG. 1;

FIG. 7 is a flowchart showing an operation of moving a display portion in the embodiment of FIG.

FIG. 8 is a diagram showing an example of a display image on a screen 8 when a display window including detailed information is opened in the embodiment of FIG.

FIG. 9 is a flowchart showing an operation of opening a display window including detailed information in the embodiment of FIG. 1;

10 is a diagram showing a state where a menu bar 16 including display selection items is displayed on a screen 8 of the display device 7 in FIG.

FIG. 11 is a diagram showing an example of a display image on a screen 8 when switching between general road display and topographic map display is performed in the present invention.

FIG. 12 is a diagram showing an example of a display image on a screen 8 when switching between a general road display and a main road display is performed in the present invention.

FIG. 13 is a diagram showing an example of a display image of the screen 8 when switching between general road display and statistical information display is performed in the present invention.

FIG. 14 is a flowchart showing an operation of switching between a general road display and a terrain map display in the present invention.

FIG. 15 is a flowchart showing an operation of switching between a general road display and a main road display in the present invention.

FIG. 16 is a flowchart showing a switching operation between a general road display and a statistical information display in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Own-vehicle position detecting device 2 CD-ROM disk 3 Decoder 4 CPU 5 Memory 6 Display driving device 7 Display device 8 Screen 9,10 Light emitting device 11,12 Light receiving device 13 Coordinate detecting device

Continued on the front page (51) Int.Cl. ⁶ Identification code FI G09G 5/34 G09G 5/34 Z 5/36 510 5/36 510B 520 520H 530 530Y

Claims (9)

[Claims] 1. A navigation device that supports driving of a vehicle while displaying data such as a road map as an image, wherein the navigation device is provided in a space within a predetermined distance from an image display screen.
Distance measuring means for measuring the distance between the screen and the fingertip; and display control means for controlling the image to be enlarged and displayed in accordance with the magnitude of the distance measured by the distance measuring means. Navigation device. 2. A navigation device for supporting driving of a vehicle while displaying data such as a road map in an image, comprising:
Distance measuring means for measuring the distance between the screen and the fingertip; and display control means for controlling the image to be displayed in a reduced scale in accordance with the distance measured by the distance measuring means. Navigation device. 3. A navigation device for assisting driving of a vehicle while displaying data such as a road map in an image, in a space within a predetermined distance from an image display screen.
A position measuring means for measuring the position of the fingertip; a traveling direction detecting means for detecting a traveling direction of the fingertip from a temporal change in the position of the fingertip measured by the position measuring means; and an image according to the traveling direction from the traveling direction detecting means. And a display control means for controlling the display portion to move. 4. A distance measuring means for measuring a distance between the screen and the fingertip in a space within a predetermined distance from the screen for displaying an image, wherein the display control means comprises: The navigation device according to claim 3, wherein the moving speed of the display portion is increased. 5. The image display apparatus further includes a distance measuring unit that measures a distance between the screen and the fingertip in a space within a predetermined distance from the screen for image display, wherein the display control unit determines a distance between the fingertip and the screen. The navigation device according to claim 3, wherein the moving speed of the display portion is reduced. 6. A navigation device for assisting driving of a vehicle while displaying data such as a road map as an image, comprising: a contact detecting means for detecting that a fingertip comes into contact with an image display screen; and a contact detecting means. Display control means for controlling a display window including detailed information to be opened on the screen when it is detected that the fingertip is in contact with the screen and continues for more than a predetermined time. Navigation device. 7. A navigation device for assisting driving of a vehicle while displaying data such as a road map as an image, comprising: an input means for selecting a display; Display control means for controlling switching between map display and navigation. 8. A navigation device for assisting driving of a vehicle while displaying data such as a road map as an image, comprising: an input means for selecting a display; A navigation control device for switching between display of a road and related information. 9. A navigation device for assisting driving of a vehicle while displaying data such as a road map as an image, comprising: input means for display selection; and designation of general road display in response to display selection on the input means. A display control means for controlling switching between display of statistical information on points and display of the statistical information.